Definition: You are given a question on machine learning. You are also given 4 answer options (associated with "A", "B", "C", "D"), out of which only one is correct. You need to answer the question by selecting the correct option. You should only answer with the choice letter, not the whole answer.
Input: Adding more basis functions in a linear model, pick the most probably option:
(A)Decreases model bias (B)Decreases estimation bias (C)Decreases variance (D)Doesn’t affect bias and variance

A